Improvement in advertising attachments to street-lamps



2 Sheets-Sheet 1 S. SMITH. Advertising Attachment to Street-Lamps.

No. 213.785. Patented A ri|1,1s79.

I ".PEIHIS. PHOTO-LITHOGRAPHER. WASHINGTON, G. c.

2 Sheets-Sheet 2.

S. SMITH. Advertising Attachment to Street-Lamps.

No. 213.785. Patented April I, 1879.

5 n. PETERS. FNDTD-UTMOGRAPHER. msume'ron. o. c.

UNITED STATES PATENT OFFICE.

SAMUEL SMITH, OF NEWCASTLE, PENNSYLVANIA.

IMPROVEMENT IN ADVERTISING ATTACHMENTS T0 STREET-LAMPS.

Specification forming part of Letters Patent No. 213,785, dated April 1,1879; application filed February 15, 1879.

To all whom it may concern:

Be it known that I, SAMUEL SMITH, of Newcastle, in the county ofLawrence and State of Pennsylvania, have invented certain new and usefulImprovements in Advertising Attachments to Street-Lamps; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawin gs, which form a part of this specification.

Figure l is a front view, Fig. 2 is a horizontal cross-section, Fig. 3is a vertical cross-section, and Fig. 4 is a sectional view, of one ofthe lens-holding tubes.

Corresponding parts in the several figures are denoted by like lettersof reference.

This invention relates to street-lamps provided withlens attachments forreflecting upon the street or pavement such transparent signs as may bearranged in said attachments; and it consists in certain improvements inthe con struction and arrangement of parts, which will be hereinafterfully described, and particularly pointed out in the claim.

In the drawings, A represents the lamp case or box, the transparentsides of which, B B, may be painted or provided with any desired signs.A door, B, furnishes access to the interior for the purpose of lightingor extinguishing the flame.

' Gas, kerosene, or gasoline may be used for illuminating purposes. Inthe latter case a receptacle, 0, arranged on top of case A, holds thefluid, which is fed through a tube, D, to a suitably-arranged. burner,E.

The bottom of case A is bent so as to form several sections, F F, atsuitable angles to the sides of the case. These sectionstwo or cover, M,through which a transparent slide,

N, having a suitable sign painted thereon,

may be inserted into said box. A tube, 0, having at each end acondensing-lens, P, is confined in the cylindrical tube J, and a similartube, Q, equipped with magnifying-lenses It It, is confined in tube L,where it may be slid to and adjusted at any desired point, so as toincrease or diminish the size of the reflection thrown.

I prefer to construct the tubes 0 Q in such a manner as to render thelenses readily detachable for the purpose of cleaning the same.

The cylinder J of the lens-holding tube is provided on opposite sideswith studs S, which enter angular slots T in a rim, U, surrounding theopening G in the lamp-case, thus holding the tube H securely inposition, but in such a manner that it may be readily detached wheneverdesired.

The operation of my invention, which acts somewhat on the principle of amagic lantern, will be readily understood from the foregoingdescription, taken in connection with the drawings hereto annexed.

As an advertising medium my invention is valuable, being simple andcheap. The transparent sign-slides may be readily taken out and otherssubstituted, and they may be produced at a small cost.

Having thus described my invention, I claim anddesire to secure byLetters Patent of the United States- The lens-holding tube H, consistingof the box I, cylindrical tube J, and conical tube K, terminating in acylindrical tube, L, in combination with the tube 0, havingcondensinglenses P P, and sliding tube Q, having magnifying-lenses ItIt, substantially as described, for the purpose herein set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

SAMUEL SMITH.

Witnesses:

D. M. OUBBIsoN, BEN E. STEPHENSON.

